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PHP Episodio VII: El Despertar de la Fuerza
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César Suárez Ortega
February 24, 2016
Programming
1
270
PHP Episodio VII: El Despertar de la Fuerza
César Suárez Ortega
February 24, 2016
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Transcript
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csuarez tharandur BEET.TECH
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Novedades en PHP 5.x PHP 5.3 Namespaces: use keyword Closures
PHP 5.4 Traits Built-in server
Novedades en PHP 5.x PHP 5.5 Generators finally keyword PHP
5.6 Variadic functions: ... Keyword phpdbg
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Hiphop HPHPc Compilador de PHP a C++ En tiempo de
ejecución (JIT compiler) HPHPi Intérprete para desarrollo Descontinuado
Hiphop vs PHP 5 http://php.webtutor.pl/en/2011/05/17/drupal-hiphop-for-php-vs-apc-benchmark/
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hhvm Máquina virtual ¡No es un conversor de código! Compilador
JIT: PHP a byte code (HHBC) HHBC en código máquina x64 Optimización al vuelo Detección de zonas calientes
Hhvm vs hpHpC http://hhvm.com/blog/2027/faster-and-cheaper-the-evolution-of-the-hhvm-jit
Hhvm parity http://hhvm.com/blog/2813/we-are-the-98-5-and-the-16
Caso real: etSy https://codeascraft.com/2015/04/06/experimenting-with-hhvm-at-etsy/
Caso real: etSy https://codeascraft.com/2015/04/06/experimenting-with-hhvm-at-etsy/ La migración no es trivial Problemas
con las extensiones
Caso real: wikipedia https://blog.wikimedia.org/2014/12/29/how-we-made-editing-wikipedia-twice-as-fast/ Ahorro en infraestructuras Ayuda directa de
Facebook
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Hack Superconjunto de PHP HHVM ejecuta Hack y PHP https://learnxinyminutes.com/docs/hack/
Hack
Hack
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performance https://kinsta.com/blog/the-definitive-php-7-final-version-hhvm-benchmark/
performance https://kinsta.com/blog/the-definitive-php-7-final-version-hhvm-benchmark/
performance https://kinsta.com/blog/the-definitive-php-7-final-version-hhvm-benchmark/
performance https://kinsta.com/blog/the-definitive-php-7-final-version-hhvm-benchmark/
Scalar Type Hints <?php declare(strict_types=1); class ElePHPant { public $name,
$age, $cuteness, $evil; public function __construct(string $name, int $age, float $cuteness, bool $evil) { $this->name = $name; $this->age = $age; $this->cuteness = $cuteness; $this->evil = $evil; } }
ReturN Type Hints <?php function foo(): array { return [];
} function foo2(): DateTime { return null; // invalid } function &array_sort(array &$data): array { return $data; }
Spaceship operatoR // Si $a < $b devuelve -1 //
Si $a = $b devuelve 0 // Si $a > $b devuelve 1 function compare(int $a, int $b): int { return $a <=> $b; } unicode codePoint echo "\u{9999}"; //prints 香
Null coalesce operator $var = $value1 ?? $value2 ?? $value3;
Bind closure on Call $three = new Value(3); $four = new Value(4); $closure = function ($delta) { var_dump($this->getValue() + $delta); }; $closure->call($three, 4); // prints 7 $closure->call($four, 4); // prints 8
Group use declarations use Doctrine\Common\Collections\Expr\Comparison; use Doctrine\Common\Collections\Expr\Value; use Doctrine\Common\Collections\Expr\CompositeExpression; use
Doctrine\Common\Collections\Expr\{ Comparison, Value, CompositeExpression }; Anonymous classes $util->setLogger(new class { public function log($msg) { echo $msg; } });
Engine exceptions BaseException (abstract) ├── Exception extends BaseException ├── ErrorException
extends Exception └── RuntimeException extends Exception └── EngineException extends BaseException ├── TypeException extends EngineException ├── ParseException extends EngineException └── AssertionError extends EngineException
gracias